Class: Fluent::Test::InputTestDriver

Inherits:
TestDriver show all
Defined in:
lib/fluent/test/input_test.rb

Defined Under Namespace

Modules: EmitStreamWrapper

Instance Attribute Summary collapse

Attributes inherited from TestDriver

#config, #instance

Instance Method Summary collapse

Methods inherited from TestDriver

#configure

Constructor Details

#initialize(klass, &block) ⇒ InputTestDriver

Returns a new instance of InputTestDriver.



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# File 'lib/fluent/test/input_test.rb', line 24

def initialize(klass, &block)
  super(klass, &block)
  @emit_streams = []
  @event_streams = []
  @expects = nil
  # for checking only the number of emitted records during run
  @expected_emits_length = nil
  @run_timeout = 5
  @run_post_conditions = []
end

Instance Attribute Details

#emit_streams ⇒ Object (readonly)

Returns the value of attribute emit_streams.



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# File 'lib/fluent/test/input_test.rb', line 46

def emit_streams
  @emit_streams
end

#event_streams ⇒ Object (readonly)

Returns the value of attribute event_streams.



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# File 'lib/fluent/test/input_test.rb', line 46

def event_streams
  @event_streams
end

#expected_emits_length ⇒ Object

Returns the value of attribute expected_emits_length.



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# File 'lib/fluent/test/input_test.rb', line 44

def expected_emits_length
  @expected_emits_length
end

#run_timeout ⇒ Object

Returns the value of attribute run_timeout.



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# File 'lib/fluent/test/input_test.rb', line 45

def run_timeout
  @run_timeout
end

Instance Method Details

#emits ⇒ Object 



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# File 'lib/fluent/test/input_test.rb', line 48

def emits
  all = []
  @emit_streams.each {|tag,events|
    events.each {|time,record|
      all << [tag, time, record]
    }
  }
  all
end

#events ⇒ Object 



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# File 'lib/fluent/test/input_test.rb', line 58

def events
  all = []
  @emit_streams.each {|tag,events|
    all.concat events
  }
  all
end

#expect_emit(tag, time, record) ⇒ Object 



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# File 'lib/fluent/test/input_test.rb', line 35

def expect_emit(tag, time, record)
  (@expects ||= []) << [tag, time, record]
  self
end

#expected_emits ⇒ Object 



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# File 'lib/fluent/test/input_test.rb', line 40

def expected_emits
  @expects ||= []
end

#records ⇒ Object 



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# File 'lib/fluent/test/input_test.rb', line 66

def records
  all = []
  @emit_streams.each {|tag,events|
    events.each {|time,record|
      all << record
    }
  }
  all
end

#register_run_breaking_condition(&block) ⇒ Object 



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# File 'lib/fluent/test/input_test.rb', line 82

def register_run_breaking_condition(&block)
  if block
    @run_breaking_conditions ||= []
    @run_breaking_conditions << block
  end
end

#register_run_post_condition(&block) ⇒ Object 



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# File 'lib/fluent/test/input_test.rb', line 76

def register_run_post_condition(&block)
  if block
    @run_post_conditions << block
  end
end

#run(num_waits = 10, &block) ⇒ Object 



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# File 'lib/fluent/test/input_test.rb', line 112

def run(num_waits = 10, &block)
  m = method(:emit_stream)
  unless Engine.singleton_class.ancestors.include?(EmitStreamWrapper)
    Engine.singleton_class.prepend EmitStreamWrapper
  end
  Engine.emit_stream_callee = m
  unless instance.router.singleton_class.ancestors.include?(EmitStreamWrapper)
    instance.router.singleton_class.prepend EmitStreamWrapper
  end
  instance.router.emit_stream_callee = m

  super(num_waits) {
    block.call if block

    if @expected_emits_length || @expects || @run_post_conditions
      # counters for emits and emit_streams
      i, j = 0, 0

      # Events of expected length will be emitted at the end.
      max_length = @expected_emits_length
      max_length ||= @expects.length if @expects
      if max_length
        register_run_post_condition do
          i == max_length
        end
      end

      # Set running timeout to avoid infinite loop caused by some errors.
      started_at = Time.now
      register_run_breaking_condition do
        Time.now >= started_at + @run_timeout
      end

      until run_should_stop?
        if j >= @emit_streams.length
          sleep 0.01
          next
        end

        tag, events = @emit_streams[j]
        events.each do |time, record|
          if @expects
            assert_equal(@expects[i], [tag, time, record])
            assert_equal_event_time(@expects[i][1], time) if @expects[i][1].is_a?(Fluent::EventTime)
          end
          i += 1
        end
        j += 1
      end
      assert_equal(@expects.length, i) if @expects
    end
  }
  self
end

#run_should_stop? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fluent/test/input_test.rb', line 89

def run_should_stop?
  # Should stop running if post conditions are not registered.
  return true unless @run_post_conditions

  # Should stop running if all of the post conditions are true.
  return true if @run_post_conditions.all? {|proc| proc.call }

  # Should stop running if any of the breaking conditions is true.
  # In this case, some post conditions may be not true.
  return true if @run_breaking_conditions && @run_breaking_conditions.any? {|proc| proc.call }

  false
end